CN105216862B - A kind of three-wheel foklift truck electric power-assisted steering apparatus - Google Patents
A kind of three-wheel foklift truck electric power-assisted steering apparatus Download PDFInfo
- Publication number
- CN105216862B CN105216862B CN201510648368.3A CN201510648368A CN105216862B CN 105216862 B CN105216862 B CN 105216862B CN 201510648368 A CN201510648368 A CN 201510648368A CN 105216862 B CN105216862 B CN 105216862B
- Authority
- CN
- China
- Prior art keywords
- wheel
- shaft
- connecting rod
- sliding block
- electronic control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Power Steering Mechanism (AREA)
Abstract
A kind of three-wheel foklift truck electric power-assisted steering apparatus, including steering wheel and electronic control unit, the servo steering device also include power transmission shaft, assist motor and linkage, and the motor shaft of the assist motor is connected by clutch with the upper end of the power transmission shaft；Spring is set with the connecting shaft, the connection shaft seat is provided with to detect the potentiometer of connecting shaft dtc signal, and the potentiometer is connected with the electronic control unit, and the electronic control unit is connected with the assist motor, clutch respectively；The lower end of the power transmission shaft is provided with driving gear, the stage casing of the power output shaft is provided with driven gear, the driving gear engages with intermediate drive gear, the intermediate drive gear engages with the driven gear, the lower end of the power output shaft is linked with the linkage, and the linkage is connected with wheel.The present invention provides a kind of relatively labor-saving, easy-maintaining three-wheel foklift truck electric power-assisted steering apparatus.
Description
Technical field
The invention belongs to fork truck apparatus field, more particularly to a kind of three-wheel foklift truck electric power-assisted steering apparatus.
Background technology
The steering of traditional Purely mechanical, during steering, apply torque on the steering wheel by driver completely to make car
Rotate to.When speed is more bigger than relatively low or loading capacity, the resistance that deflecting roller is subject to during steering will be very big, driver
To realize fast and accurately to turn in this case and will feel abnormal laborious.
At present, the servo steering system of fork truck typically uses hydraulic control system, and not only difficulty of processing is big, and performance is unstable
It is fixed, and complexity is arranged, the difficult maintenance of failure, space-consuming is big, and noise is big, the problem of oil leak also usually occurs.Work as motor
When directly over wheel, conventional steering mechanism can not effectively realize steering wheel steering synchronous with wheel and connectivity problem.
The content of the invention
In order to overcome the shortcomings of the harder, not easy-maintaining of existing vertical fork truck servo steering device, the present invention provides one
Relatively labor-saving, the easy-maintaining three-wheel foklift truck electric power-assisted steering apparatus of kind.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of three-wheel foklift truck electric power-assisted steering apparatus, including steering wheel and electronic control unit, the steering wheel and company
The upper end connection of spindle, the lower end of the connecting shaft are connected by the upper end of connection shaft seat and power output shaft, and the power-assisted turns
Also include power transmission shaft, assist motor and linkage to device, the motor shaft of the assist motor passes through clutch and the biography
The upper end connection of moving axis；
Spring is set with the connecting shaft, the connection shaft seat is provided with to detect the current potential of connecting shaft dtc signal
Meter, the potentiometer is connected with the electronic control unit, the electronic control unit respectively with the assist motor, clutch
Connection；
The lower end of the power transmission shaft is provided with driving gear, and the stage casing of the power output shaft is provided with driven gear, the master
Moving gear engages with intermediate drive gear, and the intermediate drive gear engages with the driven gear, the power output shaft
Lower end is linked with the linkage, and the linkage is connected with wheel.
Further, the linkage includes sliding block, first connecting rod, second connecting rod and pull bar, the first connecting rod it is upper
The lower end with the power output shaft is held to be hinged, the lower end of the first connecting rod is hinged with the sliding block, and the sliding block is arranged on
On horizontally disposed slide rail, the sliding block and the slide rail, which are formed, moves left and right pair, the front end of the second connecting rod by with cunning
The guide rod of rail parallel arrangement is connected with the sliding block, and the front end of the guide rod is fixedly connected with the rear end of the sliding block, institute
The rear end and the front end of the second connecting rod for stating guide rod are hinged, and the rear end of the second connecting rod and the front end of the pull bar are cut with scissors
Connect, the rear end of the pull bar is connected with wheel, and the pull bar is point articulated with the branch being fixed on vehicle frame and forms revolute pair.
Further, the electronic control unit is single-chip microcomputer.
Beneficial effects of the present invention are mainly manifested in：Efficiently solve tradition machinery steering mechanism and turn to that feel is bad asks
Topic, avoid some defects of hydraulic pressure assisted steering device；Especially solve three-wheel foklift truck motor to be located at directly over wheel
When, conventional steering system can not effectively realize steering wheel it is synchronous with wheel steering and connection the problem of.
Brief description of the drawings
Fig. 1 is a kind of structural representation of three-wheel foklift truck electric power-assisted steering apparatus.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
Reference picture 1, a kind of three-wheel foklift truck electric power-assisted steering apparatus, including steering wheel 1 and electronic control unit 2, it is described
Steering wheel 1 is connected with the upper end of connecting shaft 3, and the lower end of the connecting shaft 3 passes through the upper end of connection shaft seat 4 and power output shaft 5
Connection, the servo steering device also include power transmission shaft 7, assist motor 8 and linkage, the motor shaft of the assist motor 8
81 are connected by clutch 16 with the upper end of the power transmission shaft 7；
Spring 17 is set with the connecting shaft 3, the connection shaft seat 4 is provided with to detect the dtc signal of connecting shaft 3
Potentiometer 18, the potentiometer 18 is connected with the electronic control unit 2, and the electronic control unit 2 helps with described respectively
Force motor 8, clutch 16 connect；
The lower end of the power transmission shaft 7 is provided with driving gear 11, and the stage casing of the power output shaft 5 is provided with driven gear 9, institute
State driving gear 11 to engage with intermediate drive gear 10, the intermediate drive gear 10 engages with the driven gear 9, described dynamic
The lower end of power output shaft 5 is linked with the linkage, and the linkage is connected with wheel 15.
Further, the linkage includes sliding block 20, first connecting rod 12, second connecting rod 13 and pull bar 14, and described first
The upper end of connecting rod 12 and the lower end of the power output shaft 5 are hinged, and lower end and the sliding block of the first connecting rod 12 are hinged, institute
Sliding block 20 is stated on the horizontally disposed slide rail 21, the sliding block 20 forms with the slide rail 21 and moves left and right pair, and described the
The front end of two connecting rods 13 by being connected with the guide rod that slide rail 21 is arranged in parallel with the sliding block 20, the front end of the guide rod with
The rear end of the sliding block 20 is fixedly connected, and the rear end of the guide rod and the front end of the second connecting rod 13 are hinged, and described second
The rear end of connecting rod 13 and the front end of the pull bar 14 are hinged, and the rear end of the pull bar 14 is connected with wheel 15, the pull bar 14 with
The branch being fixed on vehicle frame is point articulated and forms revolute pair.
Further, the electronic control unit 2 is single-chip microcomputer.
In the present embodiment, when steering wheel 1 rotates, potentiometer 18 detects the angle that connecting shaft 3 turns over, and is converted into
Square signal；Spring 17 is housed, disc spring 17 is located at the top of connection shaft seat 4, fixed by spring bearer plate around the connecting shaft 3；It is described
The downward rear ramp arrangement of hypomere of power output shaft 5, certain turning, the drawing are formed with the stage casing of the power output shaft 5
Bar 14 is in inverted " V " font, and on the rotatable hinged support in top of inverted " V " font, fixed pivot is on vehicle frame；Passed among described
Moving gear 10 is arranged in rotating shaft 6；The slide rail 21 is arranged on vehicle frame；The abbreviation ECU of electronic control unit 2, ECU is according to direction
The dtc signal of disk 1 obtains the optimum target reference voltage or electric current of assist motor 8, so as to drive assist motor 8 to produce one
Fixed power torque.
The present invention the course of work be：When steering wheel 1 rotates, spring 17 deforms upon, and produces certain displacement deviation, in
It is the dtc signal that potentiometer 18 measures steering wheel 1, and passes to electronic control unit 2, ECU believes according to the torque of steering wheel 1
Number certain control strategy of process obtains the optimum target reference voltage or electric current of assist motor 8, closes clutch 16, drives
Dynamic assist motor 8 is rotated, and then rotates power transmission shaft 7 by gear drive, and band movable slider 20 left and right on horizontal slide rail 21 is moved
It is dynamic, so that pull bar 14 pulls wheel 15 to turn to, reach the effect of power-assisted steering.
The present invention solve thes problems, such as that tradition machinery steering mechanism steering feel is bad, avoids hydraulic power-assisted steering
Some defects of device, when especially solving three-wheel foklift truck motor and being located at directly over wheel, conventional steering system can not have
Effect realizes the problem of steering wheel steering synchronous with wheel and connection.
Claims (2)
1. a kind of three-wheel foklift truck electric power-assisted steering apparatus, including steering wheel and electronic control unit, the steering wheel is with being connected
The upper end connection of axle, the lower end of the connecting shaft are connected by the upper end of connection shaft seat and power output shaft, it is characterised in that：Institute
Stating servo steering device also includes power transmission shaft, assist motor and linkage, and the motor shaft of the assist motor passes through clutch
It is connected with the upper end of the power transmission shaft；
Spring is set with the connecting shaft, the connection shaft seat is provided with to detect the potentiometer of connecting shaft dtc signal,
The potentiometer is connected with the electronic control unit, and the electronic control unit connects with the assist motor, clutch respectively
Connect；
The lower end of the power transmission shaft is provided with driving gear, and the stage casing of the power output shaft is provided with driven gear, the driving tooth
Wheel engages with intermediate drive gear, and the intermediate drive gear engages with the driven gear, the lower end of the power output shaft
Linked with the linkage, the linkage is connected with wheel；
The linkage includes sliding block, first connecting rod, second connecting rod and pull bar, the upper end of the first connecting rod and the power
The lower end of output shaft is hinged, and the lower end of the first connecting rod is hinged with the sliding block, and the sliding block is arranged on horizontally disposed cunning
On rail, the sliding block and the slide rail, which are formed, moves left and right pair, and the front end of the second connecting rod with slide rail by being arranged in parallel
Guide rod is connected with the sliding block, and the front end of the guide rod is fixedly connected with the rear end of the sliding block, after the guide rod
The front end with the second connecting rod is held to be hinged, the rear end of the second connecting rod and the front end of the pull bar are hinged, the pull bar
Rear end is connected with wheel, and the pull bar is point articulated with the branch being fixed on vehicle frame and forms revolute pair.
A kind of 2. three-wheel foklift truck electric power-assisted steering apparatus as claimed in claim 1, it is characterised in that：The Electronic Control list
Member is single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510648368.3A CN105216862B (en) | 2015-10-09 | 2015-10-09 | A kind of three-wheel foklift truck electric power-assisted steering apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510648368.3A CN105216862B (en) | 2015-10-09 | 2015-10-09 | A kind of three-wheel foklift truck electric power-assisted steering apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105216862A CN105216862A (en) | 2016-01-06 |
| CN105216862B true CN105216862B (en) | 2018-03-02 |
Family
ID=54986251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510648368.3A Active CN105216862B (en) | 2015-10-09 | 2015-10-09 | A kind of three-wheel foklift truck electric power-assisted steering apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105216862B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10907892B2 (en) * | 2019-02-27 | 2021-02-02 | Whirlpool Corporation | Refrigerator with magnetic bin system |
| CN113212628B (en) * | 2021-06-17 | 2023-12-29 | 河北金奥精工制造股份有限公司 | Front suspension system of tricycle |
| CN113665667B (en) * | 2021-08-27 | 2022-10-18 | 一汽解放汽车有限公司 | Steering device and vehicle |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3983953A (en) * | 1971-07-28 | 1976-10-05 | Gemmer-France | Servo mechanism |
| JPH07291141A (en) * | 1994-04-28 | 1995-11-07 | Toyota Motor Corp | Steering device provided with transmission ratio variable type steering mechanism |
| DE19601098A1 (en) * | 1996-01-13 | 1997-02-13 | Fichtel & Sachs Ag | Drive for steering mechanism on vehicle - consists of rack and pinion linkage with intermediate reduction element. |
| JP5512924B2 (en) * | 2007-04-20 | 2014-06-04 | 株式会社ジェイテクト | Electric power steering device |
| CN101708733A (en) * | 2009-11-17 | 2010-05-19 | 北京科技大学 | Electric power-assisted steering system |
| CN103112492B (en) * | 2013-02-02 | 2015-11-25 | 哈尔滨工业大学 | A kind of motor-driven power steering control device and driving method |
| CN205059726U (en) * | 2015-10-09 | 2016-03-02 | 浙江工业大学 | Electronic power assisted steering device of tricycle fork truck |
-
2015
- 2015-10-09 CN CN201510648368.3A patent/CN105216862B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105216862A (en) | 2016-01-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105501293B (en) | A kind of electrohydraulic steering device for commercial car | |
| CN105216862B (en) | A kind of three-wheel foklift truck electric power-assisted steering apparatus | |
| CN105460076B (en) | Electric power steering apparatus | |
| CN102673637A (en) | Electric power-assisted steering system for commercial vehicle | |
| CN105173066A (en) | Electrically-driven nose wheel steering device for unmanned aerial vehicle | |
| CN105715707B (en) | Motor push rod type automotive disc brake control device | |
| CN205706842U (en) | Tandem type dual-motor electric servo steering system | |
| CN105882638B (en) | Line traffic control booster for automobile brake | |
| CN105564498A (en) | Automotive circulating ball type electric steering gear | |
| CN105292251A (en) | Four-wheel steering system for automobile | |
| CN105197101A (en) | Vertical-type forklift electric power-assisted steering device | |
| CN102632921A (en) | Electric drive pusher type steering system controlled by coupling force and displacement and control method | |
| CN205059726U (en) | Electronic power assisted steering device of tricycle fork truck | |
| CN204606092U (en) | A kind of electric children vehicle front-wheel steering drives integrated device | |
| CN206171556U (en) | Unmanned vehicle's a steering system | |
| CN203094161U (en) | Differential type power-assisted steering handle device for industrial vehicle | |
| CN103448796A (en) | Forklift steering axle | |
| CN205059720U (en) | Electronic power assisted steering device of vertical fork truck | |
| CN201333946Y (en) | Electronic differential power-off device for four-wheel vehicle | |
| CN216783617U (en) | Wheel steering mechanism and vehicle | |
| CN203372230U (en) | 100% low floor independent wheel power truck dual motor coaxial two-wheel synchronous driving mechanism | |
| CN106573644A (en) | Steering device | |
| CN201816638U (en) | Electric power-assisted steering system | |
| CN104548610B (en) | A kind of toy car front-wheel drive system | |
| CN103112488B (en) | Differential type power-assisted steering handle device for industrial vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |